Measures of Position

Quartiles and Boxplots

This topic looks at measures of position. I define and show how to calculate quartiles. I show how to use quartiles to find the interquartile range and to determine outliers. I then show how to create a boxplot and a modified boxplot using the five-number summary. I show how to find the summary and create a boxplot in RStudio.

The following resources can be used to further understand this topic: